Multiple Broadband Connections on Single Router ?

Unanswered Question
Mar 1st, 2007

Wanna preface by saying...awesome forum.Our office currently has 4 separate Internet connections. 2xCable, 2xDSL.We currently have 4 firewalls to support these connections.Not my design by the way(BOSS).That being said, there are 4 separate gateways for user connections to the internet. 1 handle email, 1 for browsing the web, Web server, and 1 VPN.Is there a way to combine these connections into 1 router and have different routes to the separate WAN connections.Instead of having 800 devices on the network that cause confusion and troubleshooting nightmares on the LAN.


David Pino

I have this problem too.
0 votes
  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
devang_etcom Thu, 03/01/2007 - 08:52

so you have four internet connection for differnt for application and you want to remove all the for gateway and wnat to use single router to terminate the all 4 isp connection as well as you want to allow to use those different application to use different path as per their application...

i mean email traffic pass through 1st link... http through 2nd link...etc...

is that the things are you looking for?



devang_etcom Thu, 03/01/2007 - 09:50

then read this carefully:

you will understand...

here in your case you have to go for the routemaps on router...

let say your router have 4ports 1,2,3,4...

on interface2 you want to allow only that tcp port 80 traffic should go...

then you have to do this:

like you are haivng HTTP which is running on port 80 of TCP... so you have to configure the access-list to permit the tcp traffic and then have to assing that TCP traffic should go to your router interface 2 so set the that traffice of port 80 should have next hop is interface 2...

look at this link for configuration:



Amit Singh Thu, 03/01/2007 - 09:02


You can certailny connect all of the connection to one router and you can configure multiple default routes to achive the load-balancing across all the links. My suggestion for this would be a more controlled way of sending the traffic across all the links and still maintaining the different traffic across different links with redundancy. What I am pointing towards is configuring the Policy based routing across these links by segregating the email, web browsing, web server and VPN traffic.

You can use Cisco ISR 2800/3800 for connecting 2xCable, 2xDSL links and then use the plociy based routing and NAT to achieve the desired results.

Please see the Cable/Dsl modules that you can connect on the Cisco routers to terminate the connections.


-amit singh

davidpino Thu, 03/01/2007 - 09:44


Thanks for your reply.I'm going to look into the products you suggested and come up with a policy based scheme that will do what I need.I appreciate your prompt reply.This network is starting to get out of control and I want to tackle it before it gets away.


David Pino


This Discussion